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  <div class="section" id="id1">
<h1>模板解析类<a class="headerlink" href="#id1" title="永久链接至标题">¶</a></h1>
<p>模板解析类可以对你视图文件中的伪变量进行简单的替换，它可以解析简单的变量和变量标签对。</p>
<p>如果你从没使用过模板引擎，下面是个例子，伪变量名称使用大括号括起来:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="o">&lt;</span><span class="nx">html</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">head</span><span class="o">&gt;</span>
        <span class="o">&lt;</span><span class="nx">title</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">blog_title</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">title</span><span class="o">&gt;</span>
    <span class="o">&lt;/</span><span class="nx">head</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">body</span><span class="o">&gt;</span>
        <span class="o">&lt;</span><span class="nx">h3</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">blog_heading</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">h3</span><span class="o">&gt;</span>

    <span class="p">{</span><span class="nx">blog_entries</span><span class="p">}</span>
        <span class="o">&lt;</span><span class="nx">h5</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">title</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">h5</span><span class="o">&gt;</span>
        <span class="o">&lt;</span><span class="nx">p</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">body</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">p</span><span class="o">&gt;</span>
    <span class="p">{</span><span class="o">/</span><span class="nx">blog_entries</span><span class="p">}</span>

    <span class="o">&lt;/</span><span class="nx">body</span><span class="o">&gt;</span>
<span class="o">&lt;/</span><span class="nx">html</span><span class="o">&gt;</span>
</pre></div>
</div>
<p>这些变量并不是真正的 PHP 变量，只是普通的文本，这样能让你的模板（视图文件）中没有任何 PHP 代码。</p>
<div class="admonition note">
<p class="first admonition-title">注解</p>
<p class="last">CodeIgniter <strong>并没有</strong> 让你必须使用这个类，因为直接在视图中使用纯 PHP 可能速度会更快点。
尽管如此，一些开发者还是喜欢使用模板引擎，他们可能是和一些其他的不熟悉 PHP 的设计师共同工作。</p>
</div>
<div class="admonition important">
<p class="first admonition-title">重要</p>
<p class="last">模板解析类 <strong>不是</strong> 一个全面的模板解析方案，我们让它保持简洁，为了达到更高的性能。</p>
</div>
<div class="contents local topic" id="contents">
<ul class="simple">
<li><a class="reference internal" href="#id2" id="id9">使用模板解析类</a><ul>
<li><a class="reference internal" href="#id3" id="id10">初始化类</a></li>
<li><a class="reference internal" href="#id4" id="id11">解析模板</a></li>
<li><a class="reference internal" href="#id5" id="id12">变量对</a></li>
<li><a class="reference internal" href="#id6" id="id13">使用说明</a></li>
<li><a class="reference internal" href="#id7" id="id14">视图片段</a></li>
</ul>
</li>
<li><a class="reference internal" href="#id8" id="id15">类参考</a></li>
</ul>
</div>
<div class="custom-index container"></div><div class="section" id="id2">
<h2><a class="toc-backref" href="#id9">使用模板解析类</a><a class="headerlink" href="#id2" title="永久链接至标题">¶</a></h2>
<div class="section" id="id3">
<h3><a class="toc-backref" href="#id10">初始化类</a><a class="headerlink" href="#id3" title="永久链接至标题">¶</a></h3>
<p>跟 CodeIgniter 中的其他类一样，可以在你的控制器中使用 <tt class="docutils literal"><span class="pre">$this-&gt;load-&gt;library()</span></tt>
方法加载模板解析类:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;parser&#39;</span><span class="p">);</span>
</pre></div>
</div>
<p>一旦加载，模板解析类就可以像下面这样使用:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span>
</pre></div>
</div>
</div>
<div class="section" id="id4">
<h3><a class="toc-backref" href="#id11">解析模板</a><a class="headerlink" href="#id4" title="永久链接至标题">¶</a></h3>
<p>你可以使用 <tt class="docutils literal"><span class="pre">parse()</span></tt> 方法来解析（或显示）简单的模板，如下所示:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;blog_title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;My Blog Title&#39;</span><span class="p">,</span>
    <span class="s1">&#39;blog_heading&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;My Blog Heading&#39;</span>
<span class="p">);</span>

<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse</span><span class="p">(</span><span class="s1">&#39;blog_template&#39;</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>
</pre></div>
</div>
<p>第一个参数为 <a class="reference internal" href="../general/views.html"><em>视图文件</em></a> 的名称（在这个例子里，文件名为 blog_template.php），
第二个参数为一个关联数组，它包含了要对模板进行替换的数据。上例中，模板将包含两个变量：
{blog_title} 和 {blog_heading} 。</p>
<p>没有必要对 $this-&gt;parser-&gt;parse() 方法返回的结果进行 echo 或其他的处理，它会自动的保存到输出类，
以待发送给浏览器。但是，如果你希望它将数据返回而不是存到输出类里去，你可以将第三个参数设置为 TRUE</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse</span><span class="p">(</span><span class="s1">&#39;blog_template&#39;</span><span class="p">,</span> <span class="nv">$data</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="id5">
<h3><a class="toc-backref" href="#id12">变量对</a><a class="headerlink" href="#id5" title="永久链接至标题">¶</a></h3>
<p>上面的例子可以允许替换简单的变量，但是如果你想重复某一块代码，并且每次重复的值都不同又该怎么办呢？
看下我们一开始的时候展示那个模板例子:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="o">&lt;</span><span class="nx">html</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">head</span><span class="o">&gt;</span>
        <span class="o">&lt;</span><span class="nx">title</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">blog_title</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">title</span><span class="o">&gt;</span>
    <span class="o">&lt;/</span><span class="nx">head</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">body</span><span class="o">&gt;</span>
        <span class="o">&lt;</span><span class="nx">h3</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">blog_heading</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">h3</span><span class="o">&gt;</span>

    <span class="p">{</span><span class="nx">blog_entries</span><span class="p">}</span>
        <span class="o">&lt;</span><span class="nx">h5</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">title</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">h5</span><span class="o">&gt;</span>
        <span class="o">&lt;</span><span class="nx">p</span><span class="o">&gt;</span><span class="p">{</span><span class="nx">body</span><span class="p">}</span><span class="o">&lt;/</span><span class="nx">p</span><span class="o">&gt;</span>
    <span class="p">{</span><span class="o">/</span><span class="nx">blog_entries</span><span class="p">}</span>

    <span class="o">&lt;/</span><span class="nx">body</span><span class="o">&gt;</span>
<span class="o">&lt;/</span><span class="nx">html</span><span class="o">&gt;</span>
</pre></div>
</div>
<p>在上面的代码中，你会发现一对变量：{blog_entries} data... {/blog_entries} 。这个例子的意思是，
这个变量对之间的整个数据块将重复多次，重复的次数取决于 &quot;blog_entries&quot; 参数中元素的个数。</p>
<p>解析变量对和上面的解析单个变量的代码完全一样，除了一点，你需要根据变量对的数据使用一个多维的数组，
像下面这样:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;parser&#39;</span><span class="p">);</span>

<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;blog_title&#39;</span>   <span class="o">=&gt;</span> <span class="s1">&#39;My Blog Title&#39;</span><span class="p">,</span>
    <span class="s1">&#39;blog_heading&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;My Blog Heading&#39;</span><span class="p">,</span>
    <span class="s1">&#39;blog_entries&#39;</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Title 1&#39;</span><span class="p">,</span> <span class="s1">&#39;body&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Body 1&#39;</span><span class="p">),</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Title 2&#39;</span><span class="p">,</span> <span class="s1">&#39;body&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Body 2&#39;</span><span class="p">),</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Title 3&#39;</span><span class="p">,</span> <span class="s1">&#39;body&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Body 3&#39;</span><span class="p">),</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Title 4&#39;</span><span class="p">,</span> <span class="s1">&#39;body&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Body 4&#39;</span><span class="p">),</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Title 5&#39;</span><span class="p">,</span> <span class="s1">&#39;body&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Body 5&#39;</span><span class="p">)</span>
    <span class="p">)</span>
<span class="p">);</span>

<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse</span><span class="p">(</span><span class="s1">&#39;blog_template&#39;</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>
</pre></div>
</div>
<p>如果你的变量对数据来自于数据库查询结果，那么它已经是一个多维数组了，你可以简单的使用数据库的
<tt class="docutils literal"><span class="pre">result_array()</span></tt> 方法:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$query</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">db</span><span class="o">-&gt;</span><span class="na">query</span><span class="p">(</span><span class="s2">&quot;SELECT * FROM blog&quot;</span><span class="p">);</span>

<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;parser&#39;</span><span class="p">);</span>

<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;blog_title&#39;</span>   <span class="o">=&gt;</span> <span class="s1">&#39;My Blog Title&#39;</span><span class="p">,</span>
    <span class="s1">&#39;blog_heading&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;My Blog Heading&#39;</span><span class="p">,</span>
    <span class="s1">&#39;blog_entries&#39;</span> <span class="o">=&gt;</span> <span class="nv">$query</span><span class="o">-&gt;</span><span class="na">result_array</span><span class="p">()</span>
<span class="p">);</span>

<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse</span><span class="p">(</span><span class="s1">&#39;blog_template&#39;</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="id6">
<h3><a class="toc-backref" href="#id13">使用说明</a><a class="headerlink" href="#id6" title="永久链接至标题">¶</a></h3>
<p>如果你传入的某些参数在模板中没用到，它们将被忽略:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$template</span> <span class="o">=</span> <span class="s1">&#39;Hello, {firstname} {lastname}&#39;</span><span class="p">;</span>
<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Mr&#39;</span><span class="p">,</span>
    <span class="s1">&#39;firstname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;John&#39;</span><span class="p">,</span>
    <span class="s1">&#39;lastname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Doe&#39;</span>
<span class="p">);</span>
<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse_string</span><span class="p">(</span><span class="nv">$template</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>

<span class="c1">// Result: Hello, John Doe</span>
</pre></div>
</div>
<p>如果你的模板中用到了某个变量，但是你传入的参数中没有，将直接显示出原始的伪变量:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$template</span> <span class="o">=</span> <span class="s1">&#39;Hello, {firstname} {initials} {lastname}&#39;</span><span class="p">;</span>
<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Mr&#39;</span><span class="p">,</span>
    <span class="s1">&#39;firstname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;John&#39;</span><span class="p">,</span>
    <span class="s1">&#39;lastname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Doe&#39;</span>
<span class="p">);</span>
<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse_string</span><span class="p">(</span><span class="nv">$template</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>

<span class="c1">// Result: Hello, John {initials} Doe</span>
</pre></div>
</div>
<p>如果你的模板中需要使用某个数组变量，但是你传入的参数是个字符串类型，那么变量对的起始标签将会被替换，
但是结束标签不会被正确显示:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$template</span> <span class="o">=</span> <span class="s1">&#39;Hello, {firstname} {lastname} ({degrees}{degree} {/degrees})&#39;</span><span class="p">;</span>
<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;degrees&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Mr&#39;</span><span class="p">,</span>
    <span class="s1">&#39;firstname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;John&#39;</span><span class="p">,</span>
    <span class="s1">&#39;lastname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Doe&#39;</span><span class="p">,</span>
    <span class="s1">&#39;titles&#39;</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;degree&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;BSc&#39;</span><span class="p">),</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;degree&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;PhD&#39;</span><span class="p">)</span>
    <span class="p">)</span>
<span class="p">);</span>
<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse_string</span><span class="p">(</span><span class="nv">$template</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>

<span class="c1">// Result: Hello, John Doe (Mr{degree} {/degrees})</span>
</pre></div>
</div>
<p>如果你的某个单一变量的名称和变量对中的某个变量名称一样，显示结果可能会不对:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$template</span> <span class="o">=</span> <span class="s1">&#39;Hello, {firstname} {lastname} ({degrees}{degree} {/degrees})&#39;</span><span class="p">;</span>
<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;degree&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Mr&#39;</span><span class="p">,</span>
    <span class="s1">&#39;firstname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;John&#39;</span><span class="p">,</span>
    <span class="s1">&#39;lastname&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Doe&#39;</span><span class="p">,</span>
    <span class="s1">&#39;degrees&#39;</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;degree&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;BSc&#39;</span><span class="p">),</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;degree&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;PhD&#39;</span><span class="p">)</span>
    <span class="p">)</span>
<span class="p">);</span>
<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse_string</span><span class="p">(</span><span class="nv">$template</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>

<span class="c1">// Result: Hello, John Doe (Mr Mr )</span>
</pre></div>
</div>
</div>
<div class="section" id="id7">
<h3><a class="toc-backref" href="#id14">视图片段</a><a class="headerlink" href="#id7" title="永久链接至标题">¶</a></h3>
<p>你没必要在你的视图文件中使用变量对来实现重复，你也可以在变量对之间使用一个视图片段，
在控制器，而不是视图文件中，来控制重复。</p>
<p>下面是一个在视图中实现重复的例子:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$template</span> <span class="o">=</span> <span class="s1">&#39;&lt;ul&gt;{menuitems}</span>
<span class="s1">    &lt;li&gt;&lt;a href=&quot;{link}&quot;&gt;{title}&lt;/a&gt;&lt;/li&gt;</span>
<span class="s1">{/menuitems}&lt;/ul&gt;&#39;</span><span class="p">;</span>

<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;menuitems&#39;</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;First Link&#39;</span><span class="p">,</span> <span class="s1">&#39;link&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;/first&#39;</span><span class="p">),</span>
        <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Second Link&#39;</span><span class="p">,</span> <span class="s1">&#39;link&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;/second&#39;</span><span class="p">),</span>
    <span class="p">)</span>
<span class="p">);</span>
<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse_string</span><span class="p">(</span><span class="nv">$template</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>
</pre></div>
</div>
<p>结果:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="o">&lt;</span><span class="nx">ul</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">li</span><span class="o">&gt;&lt;</span><span class="nx">a</span> <span class="nx">href</span><span class="o">=</span><span class="s2">&quot;/first&quot;</span><span class="o">&gt;</span><span class="nx">First</span> <span class="nx">Link</span><span class="o">&lt;/</span><span class="nx">a</span><span class="o">&gt;&lt;/</span><span class="nx">li</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">li</span><span class="o">&gt;&lt;</span><span class="nx">a</span> <span class="nx">href</span><span class="o">=</span><span class="s2">&quot;/second&quot;</span><span class="o">&gt;</span><span class="nx">Second</span> <span class="nx">Link</span><span class="o">&lt;/</span><span class="nx">a</span><span class="o">&gt;&lt;/</span><span class="nx">li</span><span class="o">&gt;</span>
<span class="o">&lt;/</span><span class="nx">ul</span><span class="o">&gt;</span>
</pre></div>
</div>
<p>下面是一个在控制器中利用视图片段来实现重复的例子:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="nv">$temp</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span><span class="p">;</span>
<span class="nv">$template1</span> <span class="o">=</span> <span class="s1">&#39;&lt;li&gt;&lt;a href=&quot;{link}&quot;&gt;{title}&lt;/a&gt;&lt;/li&gt;&#39;</span><span class="p">;</span>
<span class="nv">$data1</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;First Link&#39;</span><span class="p">,</span> <span class="s1">&#39;link&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;/first&#39;</span><span class="p">),</span>
    <span class="k">array</span><span class="p">(</span><span class="s1">&#39;title&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Second Link&#39;</span><span class="p">,</span> <span class="s1">&#39;link&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;/second&#39;</span><span class="p">),</span>
<span class="p">);</span>

<span class="k">foreach</span> <span class="p">(</span><span class="nv">$data1</span> <span class="k">as</span> <span class="nv">$menuitem</span><span class="p">)</span>
<span class="p">{</span>
    <span class="nv">$temp</span> <span class="o">.=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse_string</span><span class="p">(</span><span class="nv">$template1</span><span class="p">,</span> <span class="nv">$menuitem</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
<span class="p">}</span>

<span class="nv">$template</span> <span class="o">=</span> <span class="s1">&#39;&lt;ul&gt;{menuitems}&lt;/ul&gt;&#39;</span><span class="p">;</span>
<span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
    <span class="s1">&#39;menuitems&#39;</span> <span class="o">=&gt;</span> <span class="nv">$temp</span>
<span class="p">);</span>
<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">parser</span><span class="o">-&gt;</span><span class="na">parse_string</span><span class="p">(</span><span class="nv">$template</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span>
</pre></div>
</div>
<p>结果:</p>
<div class="highlight-ci"><div class="highlight"><pre><span class="o">&lt;</span><span class="nx">ul</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">li</span><span class="o">&gt;&lt;</span><span class="nx">a</span> <span class="nx">href</span><span class="o">=</span><span class="s2">&quot;/first&quot;</span><span class="o">&gt;</span><span class="nx">First</span> <span class="nx">Link</span><span class="o">&lt;/</span><span class="nx">a</span><span class="o">&gt;&lt;/</span><span class="nx">li</span><span class="o">&gt;</span>
    <span class="o">&lt;</span><span class="nx">li</span><span class="o">&gt;&lt;</span><span class="nx">a</span> <span class="nx">href</span><span class="o">=</span><span class="s2">&quot;/second&quot;</span><span class="o">&gt;</span><span class="nx">Second</span> <span class="nx">Link</span><span class="o">&lt;/</span><span class="nx">a</span><span class="o">&gt;&lt;/</span><span class="nx">li</span><span class="o">&gt;</span>
<span class="o">&lt;/</span><span class="nx">ul</span><span class="o">&gt;</span>
</pre></div>
</div>
</div>
</div>
<div class="section" id="id8">
<h2><a class="toc-backref" href="#id15">类参考</a><a class="headerlink" href="#id8" title="永久链接至标题">¶</a></h2>
<dl class="class">
<dt id="CI_Parser">
<em class="property">class </em><tt class="descname">CI_Parser</tt><a class="headerlink" href="#CI_Parser" title="永久链接至目标">¶</a></dt>
<dd><dl class="method">
<dt id="CI_Parser::parse">
<tt class="descname">parse</tt><big>(</big><em>$template</em>, <em>$data</em><span class="optional">[</span>, <em>$return = FALSE</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Parser::parse" title="永久链接至目标">¶</a></dt>
<dd><table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">参数:</th><td class="field-body"><ul class="first simple">
<li><strong>$template</strong> (<em>string</em>) -- Path to view file</li>
<li><strong>$data</strong> (<em>array</em>) -- Variable data</li>
<li><strong>$return</strong> (<em>bool</em>) -- Whether to only return the parsed template</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">返回:</th><td class="field-body"><p class="first">Parsed template string</p>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">返回类型:</th><td class="field-body"><p class="first last">string</p>
</td>
</tr>
</tbody>
</table>
<p>根据提供的路径和变量解析一个模板。</p>
</dd></dl>

<dl class="method">
<dt id="CI_Parser::parse_string">
<tt class="descname">parse_string</tt><big>(</big><em>$template</em>, <em>$data</em><span class="optional">[</span>, <em>$return = FALSE</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Parser::parse_string" title="永久链接至目标">¶</a></dt>
<dd><table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">参数:</th><td class="field-body"><ul class="first simple">
<li><strong>$template</strong> (<em>string</em>) -- Path to view file</li>
<li><strong>$data</strong> (<em>array</em>) -- Variable data</li>
<li><strong>$return</strong> (<em>bool</em>) -- Whether to only return the parsed template</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">返回:</th><td class="field-body"><p class="first">Parsed template string</p>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">返回类型:</th><td class="field-body"><p class="first last">string</p>
</td>
</tr>
</tbody>
</table>
<p>该方法和 <tt class="docutils literal"><span class="pre">parse()</span></tt> 方法一样，只是它接受一个字符串作为模板，而不是去加载视图文件。</p>
</dd></dl>

<dl class="method">
<dt id="CI_Parser::set_delimiters">
<tt class="descname">set_delimiters</tt><big>(</big><span class="optional">[</span><em>$l = '{'</em><span class="optional">[</span>, <em>$r = '}'</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Parser::set_delimiters" title="永久链接至目标">¶</a></dt>
<dd><table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">参数:</th><td class="field-body"><ul class="first simple">
<li><strong>$l</strong> (<em>string</em>) -- Left delimiter</li>
<li><strong>$r</strong> (<em>string</em>) -- Right delimiter</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">返回类型:</th><td class="field-body"><p class="first last">void</p>
</td>
</tr>
</tbody>
</table>
<p>设置模板中伪变量的分割符（起始标签和结束标签）。</p>
</dd></dl>

</dd></dl>

</div>
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